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Decimal number

0

  • Zero
  • Decimal
  • 0 d.p.
  • Exact fraction

0 is a decimal number equal to 0⁄1. It lies between 0 and 0, and as a percentage it is 0%.

Number properties

Absolute value0
SignZero
Integer part0
Fractional part0
Decimal places0
Floor0
Ceiling0
Rounded to nearest0
Truncated0

Fractions & ratios

As a fraction0/1exact
Ratio0 : 1
As a percentage0%
ReciprocalUndefined, division by zero

Arithmetic

Double0
Half0
Square0
Cube0
Square root0≈
Cube root0≈
Negation0

Representations

Decimal0
Scientific notation0
Exponential0e+0
IEEE 754 binary64 (hex)0x0000000000000000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x0000000032-bit single precision, may lose accuracy

Rounding

To 0 decimal places0
To 1 decimal place0.0
To 2 decimal places0.00
To 3 decimal places0.000
To 4 decimal places0.0000
To 1 significant figure0
To 2 significant figures0
To 3 significant figures0

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Neighbouring values

As a fraction

Also reads as

#0000E7 (colour)

  • #0000E7
  • Blue
  • Dark
  • Nearest: Blue

#0000E7 is a blue with RGB values 0, 0, 231 and HSL 240°, 100%, 45%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Blue.

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Colour values

#0000E7#0000E7
HEX#0000E7
RGBrgb(0, 0, 231)
RGB (0–1)0, 0, 0.9059
RGB percentages0%, 0%, 90.6%
HSLhsl(240, 100%, 45.3%)
HSV / HSBhsv(240, 100%, 90.6%)
CMYK100%, 100%, 0%, 9.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer231
CSS custom property--colour: #0000E7;

Brightness & contrast

Relative luminance0.0577WCAG 2.x, 0 is black and 1 is white
Perceived brightness78 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.75:1
Contrast with white9.75:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#FFFF18

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0050ECno red cones; affects about 1% of men; ΔE 37.9 from the original
Deuteranopia#0037E4no green cones; the most common form, about 1% of men; ΔE 23.4 from the original
Tritanopia#006087no blue cones; rare, and affects men and women equally; ΔE 109.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.75:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail

Named colours

Blue · ΔE 10.2Medium blue · ΔE 11.3Blue violet · ΔE 28.9Dark violet · ΔE 31.7Dark blue · ΔE 41.4Dark orchid · ΔE 43.4
Nearest named CSS colourBlue (#0000FF)ΔE 10.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E7E700
Analogous#0074E7, #7400E7
Triadic#E70000, #00E700
Split complementary#E77400, #74E700
Tetradic#E70074, #E7E700, #00E774

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B4B4FF
Lighter +30%#8181FF
Lighter +20%#4E4EFF
Lighter +10%#1B1BFF
Darker −10%#0000B4
Darker −20%#000081
Darker −30%#00004E
Darker −40%#00001B
More saturated +25%#0000E7
Less saturated −25%#1D1DCA

Channel breakdown

R0
G0
B231
Red0 (0%)
Green0 (0%)
Blue231 (90.6%)
Hue240°
Saturation (HSL)100%
Lightness45.29%
Dominant channelBlue
Hex per channelR 00 · G 00 · B E7

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Every value on this page was computed from “0000e7” by Nerdulator’s number engine. Nothing here was retrieved from a database of answers or written by a model.